Mize (elbow) will throw off the slope of the mound Wednesday, Chris McCosky of The Detroit News reports.
It will be the first time Mize has thrown off of any kind of incline since he underwent Tommy John surgery last June. The right-hander had a bit of a hiccup when he had to be shut down a while with back soreness, but he's back on track now. A late-season return remains possible.